Which is more pythonic?

[Travis Jensen]

Well, regardless of being "pythonic" or not, the first is far more  
understandable and therefore more maintainable. Objects were invented  
to handle holding state; using a function to hold state is, in my  
opinion, doing a language-based cheat. :)

tj

On Jan 24, 2008, at 10:14 PM, benjamin.zimmerman at gmail.com wrote:

> I have a goal function that returns the fitness of a given solution. I
> need to wrap that function with a class or a function to keep track of
> the best solution I encounter. Which of the following would best serve
> my purpose and be the most pythonic?
>
> class Goal:
>    def __init__(self, goal):
>        self.goal = goal
>        self.best = None
>        self.best_score = None
>
>    def __call__(self, solution):
>        score = self.goal(solution)
>        if self.best is None or score > self.best_score:
>            self.best_score = score
>            self.best = solution
>        return score
>
> def save_best_goal(goal):
>    def new_goal(solution):
>        score = goal(solution)
>        if new_goal.best is None or score > new_goal.best_score:
>            new_goal.best = solution
>            new_goal.best_score = score
>        return score
>    new_goal.best = new_goal.best_score = None
>    return new_goal
>
> -Ben
> -- 
> http://mail.python.org/mailman/listinfo/python-list

Travis Jensen
travis.jensen at gmail.com

http://softwaremaven.innerbrane.com/

You should read my blog; it is more interesting than my signature.